The Intergovernmental Panel on Climate Change (IPCC) has been established by WMO and UNEP to assess scientific, technical and socio- economic information relevant for the understanding of climate change, its potential impacts and options for adaptation and mitigation. The IPCC is open to all Members of the UN and of WMO.

The IPCC Working Group I contribution to the Fourth Assessment Report, "Climate Change 2007: The Physical Science Basis" will be subject to final approval and acceptance at the 10th Working Group I Session to be held in Paris from 29 January to 1 February 2007.

L-R: Martin Manning, Head WGI Technical Support Unit (TSU) and IPCC Working Group I Co-Chairs Susan Solomon and Dahe Qin, after the approval of the IPCC AR4 WGI Sumary for Policymakers, "Climate Change 2007: The Physical Science Basis.